Home / 77,675.86-116,516.37-21,516.54

Finding the Fourth Proportional to 77,675.86, 116,516.37 and 21,516.54

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Solution

The fourth proportional to 77,675.86, 116,516.37 and 21,516.54 is: 32,275.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,675.86 : 116,516.37 = 21,516.54 : x
  2. Step 2: Convert to fraction form
    77,675.86/116,516.37 = 21,516.54/x
  3. Step 3: Cross multiply
    77,675.86x = 116,516.37 × 21,516.54
  4. Step 4: Simplify right side
    77,675.86x = 2,507,028,779.51
  5. Step 5: Solve for x
    x = 2,507,028,779.51/77,675.86
  6. Step 6: Final answer
    x = 32,275.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.